Line data    Source code

       1             : /* SPDX-License-Identifier: GPL-2.0 */
       2             : /*
       3             :  * Copyright © 2016 Intel Corporation
       4             :  *
       5             :  * Authors:
       6             :  *    Rafael Antognolli <rafael.antognolli@intel.com>
       7             :  *    Scott  Bauer      <scott.bauer@intel.com>
       8             :  */
       9             : 
      10             : #ifndef LINUX_OPAL_H
      11             : #define LINUX_OPAL_H
      12             : 
      13             : #include <uapi/linux/sed-opal.h>
      14             : #include <linux/kernel.h>
      15             : 
      16             : struct opal_dev;
      17             : 
      18             : typedef int (sec_send_recv)(void *data, u16 spsp, u8 secp, void *buffer,
      19             :                 size_t len, bool send);
      20             : 
      21             : #ifdef CONFIG_BLK_SED_OPAL
      22             : void free_opal_dev(struct opal_dev *dev);
      23             : bool opal_unlock_from_suspend(struct opal_dev *dev);
      24             : struct opal_dev *init_opal_dev(void *data, sec_send_recv *send_recv);
      25             : int sed_ioctl(struct opal_dev *dev, unsigned int cmd, void __user *ioctl_ptr);
      26             : 
      27             : static inline bool is_sed_ioctl(unsigned int cmd)
      28             : {
      29             :         switch (cmd) {
      30             :         case IOC_OPAL_SAVE:
      31             :         case IOC_OPAL_LOCK_UNLOCK:
      32             :         case IOC_OPAL_TAKE_OWNERSHIP:
      33             :         case IOC_OPAL_ACTIVATE_LSP:
      34             :         case IOC_OPAL_SET_PW:
      35             :         case IOC_OPAL_ACTIVATE_USR:
      36             :         case IOC_OPAL_REVERT_TPR:
      37             :         case IOC_OPAL_LR_SETUP:
      38             :         case IOC_OPAL_ADD_USR_TO_LR:
      39             :         case IOC_OPAL_ENABLE_DISABLE_MBR:
      40             :         case IOC_OPAL_ERASE_LR:
      41             :         case IOC_OPAL_SECURE_ERASE_LR:
      42             :         case IOC_OPAL_PSID_REVERT_TPR:
      43             :         case IOC_OPAL_MBR_DONE:
      44             :         case IOC_OPAL_WRITE_SHADOW_MBR:
      45             :         case IOC_OPAL_GENERIC_TABLE_RW:
      46             :                 return true;
      47             :         }
      48             :         return false;
      49             : }
      50             : #else
      51           0 : static inline void free_opal_dev(struct opal_dev *dev)
      52             : {
      53           0 : }
      54             : 
      55           0 : static inline bool is_sed_ioctl(unsigned int cmd)
      56             : {
      57           0 :         return false;
      58             : }
      59             : 
      60             : static inline int sed_ioctl(struct opal_dev *dev, unsigned int cmd,
      61             :                             void __user *ioctl_ptr)
      62             : {
      63             :         return 0;
      64             : }
      65             : static inline bool opal_unlock_from_suspend(struct opal_dev *dev)
      66             : {
      67             :         return false;
      68             : }
      69             : #define init_opal_dev(data, send_recv)          NULL
      70             : #endif /* CONFIG_BLK_SED_OPAL */
      71             : #endif /* LINUX_OPAL_H */